Aplousina gigantea Canu & Bassler, 1927

Judith L Winston, 2016, Bryozoa of Floridan Oculina reefs, Zootaxa 4071 (1), pp. 1-81 : 17-19

publication ID

https://doi.org/ 10.11646/zootaxa.4071.1.1

publication LSID

lsid:zoobank.org:pub:D47C792F-E91D-40A6-ABB7-FA7810578562

DOI

https://doi.org/10.5281/zenodo.6084711

persistent identifier

https://treatment.plazi.org/id/19362D2E-2005-FFA2-BBA5-F8C0FBA7FF75

treatment provided by

Plazi

scientific name

Aplousina gigantea Canu & Bassler, 1927
status

 

Aplousina gigantea Canu & Bassler, 1927 View in CoL

( Fig. 8 View FIGURE 8 , Table 7 View TABLE 7 )

Aplousina gigantea Canu & Bassler, 1927: 3 ; 1928a: 20, pl. 2, fig. 6, text-fig. 3; Osburn 1940: 357; Maturo 1957: 38; Shier 1964: 612; Winston 1982: 123, fig. 34.

Material examined. VMNH no. 70606; USNM no. 1283233.

Description. Colonies encrusting on shell or Oculina rubble ( Fig. 8 View FIGURE 8 A–C). Zooids very large, measuring about 0.80 x 1.00 mm, ovoid to hexagonal in shape, almost all of the frontal surface membranous, edged by a narrow low-beaded cryptocystal rim and occasional narrow proximal gymnocyst. Ooecium endozooidal, comprising shallow imperforate cucullate structure ( Fig. 8 View FIGURE 8 B, D) formed by extension of the distal zooid wall under proximal gymnocyst and cryptocyst of daughter zooid.

Remarks. The large size of zooids makes it possible to distinguish this species from others encrusting shell substrata, even without magnification.

Distribution. Beaufort, North Carolina to Florida. Eastern Gulf of Mexico.

TABLE 7. Measurements in mm of Aplousina gigantea Canu & Bassler, 1927.

  Lz Wz Lop Wop Lo Wo Lov Wov
N 18 18 18 18 10 10 5 5
Mean 0.811 0.571 0.726 0.489 0.139 0.194 0.119 0.310
SD 0.076 0.077 0.079 0.050 0.026 0.017 0.030 0.035
Min 0.720 0.450 0.612 0.396 0.090 0.180 0.090 0.270
Max 1.008 0.720 0.936 0.576 0.162 0.234 0.162 0.360
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